DSC provides a set of Windows PowerShell language extensions, new Windows PowerShell cmdlets, and resources that you can use to declaratively specify how you want your software environment to be configured. It also provides a means to maintain and manage existing configurations."

Azure dev platform is changing quickly, but there is a solid effort from Microsoft Web tools team to provide usable documentation also. There is always a challenge with "magic goes here"
tools with too many layers hiding actual behavior.

BlobTrigger attribute: Note: The WebJobs SDK scans log files to watch for new or changed blobs. This process is inherently slow; a function might not get triggered until several minutes or longer after the blob is created. If your application needs to process blobs immediately, the recommended method is to create a queue message when you create the blob, and use the QueueTriggerattribute instead of the BlobTrigger attribute on the function that processes the blob.

The sample application is an advertising bulletin board. Users can upload images for ads, and a backend process converts the images to thumbnails. The ad list page shows the thumbnails, and the ad details page shows the full size image."

A very interesting small computer, a great value for $99
It can run 4 hours on embedded battery, and has a 2xUSB+HDMI dock included.
It can also run iPad as a second screen over USB.
It even includes a fingerprint reader!